Journal of Food, Agriculture and Environment
Vol 8,
Issue 2,2010
Online ISSN: 1459-0263
Print ISSN: 1459-0255
|
|
|
|
Newsletter
Subscribe to our newsletter and stay up to date with the latest publishes
Nutritional analysis of six forest species grown in two different edaphological conditions in a Mediterranean environment: I. Nitrogen metabolism
Author(s):
Begoña Blasco 1,
María M. Rubio-Wilhelmi 1, Eva Sánchez-Rodríguez 1, Manuel Chirosa 1, Juan M. Ruiz 1, Jose L. Rosua2, Luis Romero1*Recieved Date: 2010-01-13, Accepted Date: 2010-04-03
Abstract:The plants grew with a differentiated pH between 8.0 in the zone called Sierra Elvira and 6.0 in Llano de la Perdiz. This determined the organic-N content, which was far higher in the first zone than in the second. This same difference was found with all the species studied (Quercus ilex, Juniperus oxycedrus, Retama sphaerocarpa, Cistus albidus, Phlomis lychnitis, Daphne gnidium). This phenomenon was repeated in each of the nitrogen forms studied (NO3–, NH4+, total N, mineral N, assimilated N). Therefore, the ratio organic N:assimilated N registered an intermediate value for Llano de la Perdiz and 1.07 for Sierra Elvira, indicating that the plants had had low N reserves and thus could have suffered a lack or limitation at a certain time, and the assimilation rate was not interrupted at any time because of nutritional distortion. The NR activity in its different forms, infiltrated with NO3– or Mo and Mo+NO3– and endogenous, sharply increased, regardless of the plants or pedological conditions. This surge in activity, between 100% and 150%, indicates that the plants underwent a serious limitation in growth (biomass increase), which could have been avoided by N and Mo fertilization.
Keywords:Forest species,
Mediterranean environment, nitrogen metabolismJournal: Journal of Food, Agriculture and Environment
Year: 2010
Volume: 8
Issue: 2
Category: Environment
Pages: 1034-1039
Full text for Subscribers
Information:
Note to users
The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.
Article purchasing
If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.
Purchase this Article: 20 Purchase PDF Order Reprints for 15
Share this article :